Multiple Choice Question Answer XVI — task. Science CBSE, Class 10.

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1. What is the correct order of electronegativity

$M^+{^1}$ < $M^+{^2}$ > $M^+{^3}$ < $M^+{^4}$
$M^+{^1}$ < $M^+{^2}$ < $M^+{^3}$ < $M^+{^4}$
$M^+{^1}$ > $M^+{^2}$ > $M^+{^3}$ > $M^+{^4}$
$M^+{^4}$ < $M^+{^2}$ < $M^+{^3}$ < $M^+{^1}$

2. What is the nature of

$Al_2O_3$ and

$B_2O_3$

Amphoteric, amphoteric
Amphoteric, acidic
Acidic, acidic
Acidic , amphoteric

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